oj.uz

답안 #580809

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
580809 2022-06-21T21:16:49 Z MohamedFaresNebili 말 (IOI15_horses) C++14
100 / 100
 1193 ms 97516 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

        using namespace std;
        using namespace __gnu_pbds;

        using ll = __int128;
        using ii = pair<int, int>;

        #define pb push_back
        #define pp pop_back
        #define ff first
        #define ss second

        typedef tree<int, null_type, less<int>, rb_tree_tag,
            tree_order_statistics_node_update> indexed_set;

        const ll MOD = 1e9 + 7;
        const ll MX  = 1e9;

        ll N, X[500001], Y[500001], st[2000005], ST[2000005]; set<ll> S;
        void build(ll v, ll l, ll r) {
            if(l == r) {
                st[v] = X[l]; ST[v] = Y[l];
                return;
            }
            build(v * 2, l, (l + r) / 2);
            build(v * 2 + 1, (l + r) / 2 + 1, r);
            st[v] = st[v * 2] * st[v * 2 + 1] % MOD;
            ST[v] = max(ST[v * 2], ST[v * 2 + 1]);
        }
        void update(ll v, ll l, ll r, ll p) {
            if(l == r) {
                st[v] = X[l], ST[v] = Y[l];
                return;
            }
            ll md = (l + r) / 2;
            if(p <= md) update(v * 2, l, md, p);
            else update(v * 2 + 1, md + 1, r, p);
            st[v] = st[v * 2] * st[v * 2 + 1] % MOD;
            ST[v] = max(ST[v * 2], ST[v * 2 + 1]);
        }
        ll query(ll v, ll l, ll r, ll lo, ll hi) {
            if(l > hi || r < lo) return 1;
            if(l >= lo && r <= hi) return st[v];
            return query(v * 2, l, (l + r) / 2, lo, hi) * query(v * 2 + 1, (l + r) / 2 + 1, r, lo, hi) % MOD;
        }
        ll Query(ll v, ll l, ll r, ll lo, ll hi) {
            if(l > hi || r < lo) return 0;
            if(l >= lo && r <= hi) return ST[v];
            return max(Query(v * 2, l, (l + r) / 2, lo, hi),
                       Query(v * 2 + 1, (l + r) / 2 + 1, r, lo, hi));
        }
        ll solve() {
            if(S.empty()) return ST[1];
            auto it = S.end(); it--;
            ll v = 1; vector<ll> arr;
            while(v <= MX) {
                v *= X[*it]; arr.pb(*it);
                if(it == S.begin()) break;
                it--;
            }
            reverse(arr.begin(), arr.end());
            v = 1; ll best = 0;
            for(ll l = 0; l < (ll)arr.size(); l++) {
                v *= X[arr[l]];
                best = max(best, v * Y[arr[l]]);
                if(l < arr.size() - 1)
                    best = max(best, v * Query(1, 0, N - 1, arr[l], arr[l + 1] - 1));
                else best = max(best, v * Query(1, 0, N - 1, arr[l], N - 1));
            }
            if(v <= MX) best = max(best, Query(1, 0, N - 1, 0, arr[0] - 1)), best %= MOD;
            else best = best % MOD * query(1, 0, N - 1, 0, arr[0] - 1) % MOD;
            return best;
        }
        int init(int n, int x[], int y[]) {
            N = n;
            for(int l = 0; l < N; l++) {
                X[l] = x[l], Y[l] = y[l];
                if(X[l] > 1) S.insert(l);
            }
            build(1, 0, N - 1);
            return solve() % MOD;
        }
        int updateX(int pos, int val) {
            if(X[pos] > 1) S.erase(pos);
            X[pos] = val;
            if(X[pos] > 1) S.insert(pos);
            update(1, 0, N - 1, pos);
            return solve() % MOD;
        }
        int updateY(int pos, int val) {
            Y[pos] = val;
            update(1, 0, N - 1, pos);
            return solve() % MOD;
        }

Compilation message

horses.cpp: In function 'll solve()':
horses.cpp:66:28: warning: conversion from 'll' {aka '__int128'} to 'std::vector<__int128>::size_type' {aka 'long unsigned int'} may change value [-Wconversion]
   66 |                 v *= X[arr[l]];
      |                            ^
horses.cpp:67:44: warning: conversion from 'll' {aka '__int128'} to 'std::vector<__int128>::size_type' {aka 'long unsigned int'} may change value [-Wconversion]
   67 |                 best = max(best, v * Y[arr[l]]);
      |                                            ^
horses.cpp:69:65: warning: conversion from 'll' {aka '__int128'} to 'std::vector<__int128>::size_type' {aka 'long unsigned int'} may change value [-Wconversion]
   69 |                     best = max(best, v * Query(1, 0, N - 1, arr[l], arr[l + 1] - 1));
      |                                                                 ^
horses.cpp:69:75: warning: conversion from 'll' {aka '__int128'} to 'std::vector<__int128>::size_type' {aka 'long unsigned int'} may change value [-Wconversion]
   69 |                     best = max(best, v * Query(1, 0, N - 1, arr[l], arr[l + 1] - 1));
      |                                                                         ~~^~~
horses.cpp:70:66: warning: conversion from 'll' {aka '__int128'} to 'std::vector<__int128>::size_type' {aka 'long unsigned int'} may change value [-Wconversion]
   70 |                 else best = max(best, v * Query(1, 0, N - 1, arr[l], N - 1));
      |                                                                  ^
horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:83:28: warning: conversion from 'll' {aka '__int128'} to 'int' may change value [-Wconversion]
   83 |             return solve() % MOD;
      |                    ~~~~~~~~^~~~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:90:28: warning: conversion from 'll' {aka '__int128'} to 'int' may change value [-Wconversion]
   90 |             return solve() % MOD;
      |                    ~~~~~~~~^~~~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:95:28: warning: conversion from 'll' {aka '__int128'} to 'int' may change value [-Wconversion]
   95 |             return solve() % MOD;
      |                    ~~~~~~~~^~~~~

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 300 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 2 ms 448 KB Output is correct
25 Correct 3 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 7 ms 348 KB Output is correct
28 Correct 3 ms 468 KB Output is correct
29 Correct 2 ms 340 KB Output is correct
30 Correct 2 ms 468 KB Output is correct
31 Correct 4 ms 468 KB Output is correct
32 Correct 6 ms 340 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1159 ms 85064 KB Output is correct
2 Correct 538 ms 85060 KB Output is correct
3 Correct 525 ms 88752 KB Output is correct
4 Correct 689 ms 92668 KB Output is correct

Subtask #4
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 2 ms 468 KB Output is correct
25 Correct 3 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 6 ms 456 KB Output is correct
28 Correct 3 ms 468 KB Output is correct
29 Correct 2 ms 340 KB Output is correct
30 Correct 2 ms 468 KB Output is correct
31 Correct 4 ms 468 KB Output is correct
32 Correct 6 ms 468 KB Output is correct
33 Correct 79 ms 56840 KB Output is correct
34 Correct 67 ms 56904 KB Output is correct
35 Correct 248 ms 95036 KB Output is correct
36 Correct 237 ms 94840 KB Output is correct
37 Correct 183 ms 55068 KB Output is correct
38 Correct 148 ms 71784 KB Output is correct
39 Correct 54 ms 54768 KB Output is correct
40 Correct 218 ms 90016 KB Output is correct
41 Correct 108 ms 54860 KB Output is correct
42 Correct 133 ms 54932 KB Output is correct
43 Correct 218 ms 90280 KB Output is correct
44 Correct 212 ms 90316 KB Output is correct

Subtask #5
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 2 ms 468 KB Output is correct
25 Correct 3 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 7 ms 456 KB Output is correct
28 Correct 3 ms 468 KB Output is correct
29 Correct 1 ms 452 KB Output is correct
30 Correct 2 ms 468 KB Output is correct
31 Correct 4 ms 340 KB Output is correct
32 Correct 7 ms 472 KB Output is correct
33 Correct 1155 ms 88912 KB Output is correct
34 Correct 499 ms 97516 KB Output is correct
35 Correct 547 ms 88948 KB Output is correct
36 Correct 654 ms 92660 KB Output is correct
37 Correct 80 ms 56860 KB Output is correct
38 Correct 77 ms 56804 KB Output is correct
39 Correct 256 ms 95292 KB Output is correct
40 Correct 272 ms 94852 KB Output is correct
41 Correct 163 ms 54992 KB Output is correct
42 Correct 163 ms 71752 KB Output is correct
43 Correct 56 ms 54724 KB Output is correct
44 Correct 256 ms 90060 KB Output is correct
45 Correct 113 ms 54840 KB Output is correct
46 Correct 138 ms 55020 KB Output is correct
47 Correct 257 ms 90452 KB Output is correct
48 Correct 234 ms 90624 KB Output is correct
49 Correct 305 ms 60192 KB Output is correct
50 Correct 254 ms 60208 KB Output is correct
51 Correct 558 ms 96868 KB Output is correct
52 Correct 404 ms 96252 KB Output is correct
53 Correct 1193 ms 58484 KB Output is correct
54 Correct 535 ms 76336 KB Output is correct
55 Correct 207 ms 55908 KB Output is correct
56 Correct 394 ms 91844 KB Output is correct
57 Correct 760 ms 56464 KB Output is correct
58 Correct 1062 ms 56996 KB Output is correct
59 Correct 210 ms 90316 KB Output is correct